put EditorGridPanel in tabpanel, the first time,the editor box it's work, but in the second time it's not work.(In IE6).and then take the try{} catch(){}, it's not work also.
i guess the editor it's removed,but the event or other things attached.
In the seconde time,when event occured,the editor removed from dom trigger the error.
so, i give up use EditorGridPanel in tabpanel,but in window, that's work fine.

any one can give me suggestion?